As an Amazon Associate I earn from qualifying purchases.Updated: April 03, 2026
The Group Head Seal in your Breville Bambino Plus is responsible for creating a watertight seal between the portafilter and the group head, essential for proper espresso extraction. Over time, this seal can wear down, leading to leaks, inconsistent pressure, and reduced espresso quality. Replacing the seal regularly prevents these issues and ensures your machine continues to operate at its best.
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Function: The Group Head Seal creates a tight seal between the portafilter and the group head to prevent water leaks during brewing.
Signs it needs replacing: If you notice leaking around the portafilter during brewing, decreased espresso output, or inconsistent extraction, your Group Head Seal may need replacement.
OEM vs aftermarket: Both OEM (Original Equipment Manufacturer) and aftermarket Group Head Seals are available. While OEM parts guarantee exact compatibility, they can be more expensive. Aftermarket parts are often a cost-effective alternative, but ensure they specifically state compatibility with the Breville Bambino Plus BES870XL model.
Installation: Replacing the Group Head Seal generally involves removing the portafilter, unscrewing the old seal, and installing the new one. Refer to your Breville Bambino Plus manual for detailed instructions or watch online tutorials for guidance.
Replacement schedule: every 6 months
Compatibility warning: always verify part number matches your exact model before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance on the every 6 months replacement cycle
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This replacement part is for the Breville Bambino Plus BES870XL owner who wants to restore their espresso machine's performance and avoid potentially costly repairs caused by a worn seal.
Not ideal for: If your Breville Bambino Plus is experiencing multiple issues beyond just the Group Head Seal, a full device replacement might be more economical in the long run.
Good to Know Before Buying
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Always confirm your exact model number (BES870XL) before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the Breville Bambino Plus Group Head Seal?
The part number is 700.1001. Always verify this matches your exact model (BES870XL) before ordering, as similar models may use different parts.
How often should I replace the Group Head Seal on my Breville Bambino Plus?
every 6 months
Will aftermarket Group Head Seal replacements work in my Breville Bambino Plus?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model BES870XL and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.